Mailinglist Archive: opensuse-factory (1578 mails)

[Lew Wolfgang <wolfgang@xxxxxxxxxxxxxxx>]

On 11/15/2011 05:03 PM, Rüdiger Meier wrote:
 >  On Wednesday 16 November 2011, Lew Wolfgang wrote:
 >
 >>  First, why are there two address with the first 4 fields being
 >>  identical?  The working system had only one.
 >  Why you get a non link local address at all? DHCP, avahi ...?
 >  The usual case would be that you have nothing than one local fe80::/64
 >  addess per NIC.

Hi Rudi

I'm certainly not a IPv6 expert, but doesn't a host negotiate with the
nearest router for non-link local addresses?  There is dhcp, but IIRC
it's only IPv4.  Microsoft products and Apple don't work well with
dhcpd-ipv6, IIRC.

 >>  Notice that the second entry has a fe08:43 as the last part
 >>  of the address.  The 08 and 43 are in the last part of the MAC
 >>  address, but where's the 00?
 >  Link local address is not "equal" mac adress.
 >  
http://www.ipv6news.info/2007/07/25/how-to-form-a-link-local-address-from-mac-address/

Right.  Here's the ifconfig output from the not-working RC2 system:

eth0       Link encap:Ethernet  HWaddr 00:xx:E8:08:00:43
           inet addr:xxx.yy.77.50  Bcast:xxx.yy.79.255  Mask:255.255.252.0
           inet6 addr: xxxx:yyy:zz:76:224:e8ff:fe08:43/64 Scope:Global
           inet6 addr: fe80::xxx:e8ff:fe08:43/64 Scope:Link
           inet6 addr: xxxx:yyy:zz:76:54d2:36fb:2fd5:56b6/64 Scope:Global

As you can see, the link-local address is malformed given the ipv6news 
information.

Should be:   fe80::xxx:e8ff:fe08:00:43/64
Is:          fe80::xxx:e8ff:fe08:43/64

I added the "xxx")

Notice that the first "global" address has the same problem.  Could this
failure to transcribe the lower 24-bits of MAC addy?

 Regards,
 Lew


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